In a temperate semi-arid environment, granite weathering commonly produces which sediment?

In a temperate semi-arid environment, granite weathering commonly produces which sediment?

• A. Clay
• B. Quartz crystals
• C. Feldspar
• D. Sand

Answer: (D)

In a temperate semi-arid setting, physical weathering dominates because temperature fluctuates widely and rainfall is limited. Granite, which contains quartz, feldspar, and other minerals, tends to break down into grains rather than chemically altering much of the mineral structure. Quartz is very resistant to chemical attack, so it remains as grains, while feldspar would need chemical weathering to form clay, a process that’s slow in these climates. The net result is largely sand-sized particles derived from the granite, making sand the most typical sediment produced.

In a temperate semi-arid setting, physical weathering dominates because temperature fluctuates widely and rainfall is limited. Granite, which contains quartz, feldspar, and other minerals, tends to break down into grains rather than chemically altering much of the mineral structure. Quartz is very resistant to chemical attack, so it remains as grains, while feldspar would need chemical weathering to form clay, a process that’s slow in these climates. The net result is largely sand-sized particles derived from the granite, making sand the most typical sediment produced.